Furnace combustion chamber



`March 3, 1931. A SPYER I 1,794,802

FURNACE COMBUSTIONACHAMBER Filed July 2. 1926 7 Sheets-Sheet l /LISVENTOR March 3, 1931, A. SPYER FURNACE COMBUSTION CHAMBER Filed July 2. 192e 7 sheets-sheet 2 INVENTR ATTORNEYS Mar A. sPYx-:R 1,794,802

FURNACE COMBUSTION CHAMBER '7 Sheets-Sheet 3 Filed July 2, 1926 Fig- HH H H H n :um

muuu um! .FURNACE GOMBUSTION CHAMBER Filed July 2,'1926 7 Sheets-Sheet 4 Z a WV INVENTOR March 3, 1931. A, SPYER FURNACE COMBUSTION CHAMBER Filed July 2, 1926 7 Sheets-Sheet 5 INVEEQR fm W 466% ATTORN EYS E. :ag

7 sheets-sheet 6 VENTOR MW f MMX/0 TTORNEYS A. SPYER COMBUSTION CHAMBER FURNACE Filed -July 2. 1926 March 3, 1931.

Mmh 3, 1931. y A.SPYER 1,194,802

FURNACE COMBUSTION CHAMBER Filed July 2. 1926 7 Sheets-Sheet 7 VMI/1% INVENTOR BY JM ATTORNEYS Patented Mar.r 3, 931

ARTHUR sPYER, oii` LONDON, ENGLAND, Ass y l LER LEHIGH COMPANY, A conneniariaivon DELAWARE j A, i ,nofrafnh j--iaiisivn AssiGNMENTsTo FURNAQE coMBUstr'Ion'ciiAi/rinn Y D Application meariuiy 2, 192s, serial No. ieonwpanaxmGreat micaminafeh 13, risas. ,f

This invention relates to a furnace for a` boiler in whichfurnace wall tubes are disposed and connected to headers. i The invention will be understood from the description in connection with the accom! y panying drawings, in which Fig. 1 is a vertical section through an illustrative einbodinient of the invention; Fig. 2 is a section along the line 2 2 of Fig. 1; Fig. 3 is a front view of the device; Fig. 4: isa rear view of the saine; Fig. 5 is a vertical section through a modification and Figs. 6 and 7 are front and plan views, respectively, of the saine.

ln the drawings reference character 5 indicates a transverse steam and water drum of a boiler that is provided with inclined tubes 6 connected to downtake headers 7 and uptake headers 8, the downtake headers being connected to the steam'and water druin 5 by means of the nipples 9, and the uptake headers being connected to the steam and water drum by the tubesV 10. Battles 11 are disposed across the inclined tubes 6 in the usual manner to guide theliot gases, as shown by the arrows. Y

The boiler above described isiiof a wellknown type,-and below the same is located a fui-nace 15 that is provided with fuel-burners 16 on the frontside thereof.

Tubes 17 and 1S lead from the water space of the diuin 5 near'the ends thereof down wardly to T-unions 19 and 20. Tubes 21A and 22 lead from the T-unicn 19 to ,vertical downtake headers 23 and Y24, respectively, located near the cci-ners of the furnace atene side thereof. Tubes 25 and 26 lead from the T-union 2O to siinilar vertical downtake headers 27 and 28, respectively, located near n jexteriorly of the wall and may be placed 'in recesses therein. By this arrangement,Bee`

the corners of ythe furnace on' the opposite 40 side thereof. Rows 29 and 30V of inclined tubes are located in the front wall of the furnace and connect the downtake headers 23 nace on the outside thereof and in front of theV sainenearsthe middle, Tubes?. and .3S

Vrlead, freni lthe i T-union .36, ,to Tj-unions i 3 9 'and l0 respectively, nea-r Qtlieyends'jfof the .druign f1 A, nipple il Vleads `,fr ,onji fthe .upper .end ,of the uptake headerlite a QI-iiiiiane located AL55 ,iiearfthe 7upper,partiovf the lfugrnaceion thevvQutysfide thereaf behind .the rear .wall and near .theainiddlef "llubesg efand 4,4 lead frein .the ,T-,unioii 4to the `connections 115 fand 46 .,(Figlf).

n Rows 1,7 and .lll-Stof Vinclinedtubesarelocated' n Nin 'theel-id wallsfof the furnace Tconnect the downtake headers 23 and'21 y.uptake headers e9 K4andIiO, respectively, the {uplper iends' -ef which arefccnnectedf ,toathe ,connec- 9,5

52 connetvthe ,connections 4 5 :and 46 tothe @Reunions 39aIvCsl40, respectively, which are. .eonnectedlto steam QSpLCe ,of Athe drum 1,5

ginie inuinaiuibesia thmas of nie fur*- e nace conllectingthe verticallydisposed head ers lare straight, .and `outvvfljrdly openingrecesses 5,16, f5.7, 158, 59,",60v and ,61 are inade in ,thewallsso,v as to lpermit A'easy access .to the 1L:,Llbesfiionithe. exterior. "Ehe -headersare ,dis-Y i l posed externally, to the" funnace ',aii'd no pbent y tubes are required between fthe llieaders. It

inany advantages are obtained, among which may be mentioned the facility with which the tubes inay be installed, cleaned andY re-KV placed and thefact that the tubes extend the fulllengh of the walls, thereby furnishings: thelilr cooling affect clear to the 'corner of they wa The system of circulation of water through `the tubes from the boiler will be readily un-Y derstood, and it will be Yseen that no (templi-1.3.9

cated arrangement of tubes for supplyin O water to the headers and returning steam and water from the headers is required.

In the modiiicationshown in Figs. 5 6 and Y 7, a water cooled arch is shown near the upper portion of the furnace 0n the front side,

composed of tubes that are connected to hori zontal headers. These tubes may beproteet-V ed by tile or brickwork. In this modification,

branches V from the tubes .17 and 18.7lead into a lower horizontal header 66 from which a row of tubes 67 leads tov the-horizontalv header 68, both of the headers 66 and 68 being located outside of the furnace wall, and the tubes 67 connecting the same extending so as to form a combustion arch. The fuel Y burners may be installed between the tubesl Y 67 for introducing` the fuel into the combustion chamber. T he header G8 is connected'by branches 69 to the tubes 37 and 38. It will thus be obvious that water circulatesthrough thetubes 67 byentering the header G6 and passing inwardly and upwardly through the tubes .67 to the header 68, from which the Water and steam pass through the branches 69 and tubes 37 and 38 to the steam space of the drum 5.

I claim l. In a boiler furnace, vertically rdisposed Vdowntakehe'aders near the corners ofl said furnace, vertically disposed uptake headers near the middle of the front and rear walls of said furnace, rows of straight tubes connecting said uptake and downtale headers, and

outwardly opening recesses inthe walls ofl f said furnace to receive some of said headers. Q.. In a furnace, two intersecting walls,

rows of straight tubes disposed in each of said walls, eachrow extending beyond the intei-section of saidwalls, the tubes in one row being disposed between the tubes of the other row at said intersection, headers con- Y nected to the tubes in each row, and one of `said headers being disposed within an outwardly opening recess in a wall.

i ARTHUR SPYER. 

